From: "Y. NOBUOKA" <nobuoka@...>
Date: 2010-09-18T15:39:39+09:00
Subject: Re: using send to define object methods

Hello,

If you execute your script on Ruby 1.9, you can use
Object#define_singleton_method to add a method to an object.

# --- begin: example ---

class MyClass
end
MyClass.send(:define_method, :poof) {'I say poof!'}
x = MyClass.new
y = MyClass.new

x.define_singleton_method( :poof_singleton ) { "Here is in a singleton
method." }
x.poof_singleton #=> "Here is in a singleton method."
y.poof_singleton #=> NoMethodError

# --- end: example ---

The method Object#define_singleton_method is able to be used on Ruby
1.9, but I couldn't find out its doc...


2010/9/18 David Miller <dmiller@tecolote.net>:
> Hello
>
> If I want to add a method to a class, I can use send as shown below.  Is
> there a similar way to use send to add a method to an object?
>
> class MyClass
> end
>
> MyClass.send(:define_method, :poof) {'I say poof!'}
>
> x = MyClass.new
> x.poof # => "I say poof!"
>
>
> I can define an object method as follows:
>
> def x.object_poof
>  'I say object_poof'
> end
>
> x.object_poof # => "I say object_poof"
>
> I would like to use send to define object methods but I have not figured
> out how.
>
> Thanks
> Dave Miller
> --
> Posted via http://www.ruby-forum.com/.
>
>

-- 
NOBUOKA Yuya
e-mail: nobuoka@r-definition.com